How space weather powers auroras in the sky and threatens power grids on the ground

By Sanjay Kumar, Research Fellow in Climate and Space Sciences and Engineering, University of Michigan
Mark Moldwin, Professor of Climate and Space Sciences and Engineering and Applied Physics, University of Michigan

An aurora is one of nature’s most spectacular light shows: It looks like green or red curtains rippling across the night sky. When viewed from the ground, this colorful display might seem far away and disconnected from anything happening on Earth’s surface.

But while these beautiful displays are part of a much larger process known as “space weather” – changes in Earth’s space environment caused by activity…

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